Joined by a fitness instructor, the pair could be seen burning some serious calories as they trained in hot Californian sun.

Pixie has been across the pond recording new material for her next release for the past few weeks.

The singer, who had a brush with reality TV last year during her stint on Strictly Come Dancing last year, is now back in the studio working on her next album.

She recently revealed she's been working with pop producer Cathy Dennis, who has masterminded hits like Katy Perry's I Kissed a Girl, Britney Spears's Toxic and Kylie Minogue's Can't Get You Out of My Head.

In the 1990s Dennis enjoyed her own impressive solo career, with three hit albums: Move To This, Into The Skyline and Am I The Kinda Girl?.

She also enjoyed a slew of big hit singles in the USA, including Touch Me (All Night Long), which reached Number 1 stateside and Top 5 in the UK.

Two's company: Joined by a fitness instructor, the pair could be seen burning some serious calories as they trained in hot Californian sun